Yarn winding machine



Nov, 235, M54 A. E. wlNsLow ET Ax. 2,694,896

YARN WINDING MACHINE I' Filed Maron s, 1952 5 sheets-sheet l INVENTORS ALE/w f. :4r/M51. aw s ,raf/,v A. amaba/mw 75M, MM s@ Nov. 23, 1954 A. E. wlNsLow ETAL YARN WINDING MACHINE 5 Sheets-Sheet 2 Filed March 3, 1 952 W @u N fm1 S f A w o R w. l d, N www TM S m "In MN v N 7 a m mN 1, N MN x Hmm m L nu 1 a u/ QNL INN l VWNN ww g uw M Y mw B n l u/ wr mw .VN J. NNN W f Timm. ,NN uw NN\ N NN.) Nw N N NNI, lON mw L .wu vw J l. w H m ,)mw NN WN v QN bw Nw N mw ANL wwmw @N vw g O O O O O O O O O O O O O O .JO O O OMNI 0,3 SPG www Nom 23, 1954 A. E. wuNsLow ETAL YARN WINDING MACHINE 5 Sheets-Sheet 5 Filed March 5, 1952 Wmw, wa, f, SW

Nov. 23, 1954 A. E. waNsLow Ermn 6947896 YARN WINDING MACHINE Filed March 5, 1952 5 Sheets-Sheet 4 Fig 7 1N VE NTORS' ATTORNEYS Nov. 23, 1954 A. E. wlNsLow ETAL YARN WINDING MACHINE 5 Sheeis-Sheet 5 Filed March 3, 1952 INVENTORS ALERr E. W//YJL 0W Jou/v A, RAosHA w numana-mann unmmnmmmmmmnmnmmmna:annummmm-amn BQmms, 604W@ a SM ATTORNEYS United States Patent ilce 2,694,896 Patented Nov. 23, 1954 YARN WI'NDING MAcnrNE Albert E. Winslow and .lohn A. Bradshaw, Greenville,

l C., assignors to J. P. Stevens & Co., Inc., a corporation of Delaware appiicanm March s, 1952, serial No. 274,561 is claims. (ci. sra-i) `tuated by frictional contact with a take-up roll.v Characteristically,v the rotating `spindles and yarn receiving members and related operating elements are arranged in a .plurality of vertically spacedbanks with common means Itor driving the spindles and for regulating yactuation or' ,the yarn receiving members in each bank.

According .to ,the present invention, a 'novel `frame structure isprovided for theabo/vev noted banks of operating elements vby which these banksmay be disposed compactly for vconvenient attention and etlicient operation, and by iwhich the 'related disposition of the operating elements either `within or between the banks reymains adjustable .so that complete bench assemblyof the :uptwister is possible `to leave only such adjustment necessary in the eldas is required for alignment lupon installation or variation of theoperating,relationof the banks as desired during subsequent use.

Also, the ,frame structure `of the present invention allows the incorporation `of an advantageous varra;,ngernejnt of separators between the yarn delivery' spindles jwhicli lare .swingably `mounted for ,normal vdisposition between the spindles bu'tmay.beswung,frornrbetweenthe spindles and uniquely .latched at a swung out position for' cleanmg.

These andother features of the present invention are `describedl in detail below'in'connectionwith the accompanying drawings, .in which:

Fig.V lisa perspective view of ayarn winding machine or uptwist'er constructed in accordance with thel'present invention;

Fig. 2is a side ,elevation showing in morel or less skeletonform a frarnestructure' narranged in accordance with the ,present invention'for a `yarn'winding machine as `shown in Fig'. 1;

Fig. 3 is arepresentative sectional detail of the'stand elements for the framestructure shownin Fig. 2, and 1n which the manner of" securing the operatingl elements of the machine Von the stand elements in accordance with the .present invention is illustrated;

Fig. 4 is a corresponding fragmentary side elevatlon taken substantially fromthe line 4 4 in Fig. 3;

' Fig. `.iis a schematicplan View indicating the lengthwisen layout arrangerneritof the yarn'winding machine Ashown in.Fig. l; A

` Fig. 6V is a vertical section of the yarnnwmding machine shown in Fig. y1l takenadjacent theY mid standeleinent;

i Fig. 7 is anenlarged fragmentary .detail illustrating the arrangement ofthe vswingably 'mounted separators; and

Fig. 8.is a `diagrammatic layout for ya yarnw'indlng machineuarrangd according to the presentinventionin an extendedlength.

Referring now in detail to the drawings, yand more` par- .ticularly at rsttoFig. yl, there is illustrated inFig. l a representative embodirnent` of an .`uptwister or' yarn winding machine incorporatinga fratriey Vstructure infaccordance with the .presentuinvention .As shown, this frame `structure Vcomprises a Vplurality of horizontally spaced verticalstand elements..alrianngedadj;acentlme` ends ot' Vthe machine as at l0 and 11 and intermediately thereof as at l2.' Eachro'f these stand elements 1&,11 and'lZ are provided at their lower ends with lateralbase members 13, which` areiyitt'ed with leveling feet i4 at their extend? ing ends and engage and'support a guard rail 15 encircling the machine,` all as will `beklescribedl in'furtlierltletail presently; .i l- 1 Mounted on the frame structure are the previously mentioned banks of yarn rewinding elements as-lindica't'ed generally at B, and which are illustrated as comprising-'a plurality of yarn"delivery spindles* ll6-spaced withlinterposed separators 17 Aand 'arranged inrela'tion to a corresponding'plurality ofyarn take-up rolls V18 spaced above the 4spinc'll'esjlt and "adaptedA for-actuating-yarn` receiving members" (not shownywhich maybe disposed Ein finger brackets asat 19 f'or peripheraldriving contact with these take-up rolls iid. rlt will beunde'rstood that similar banks B willbe arranged on `the opposite side ofthe machine to that'sh'own `in Fig. 1.' AAlso mounted on Vthe trame struc'- 'ture'at the end stand element lltlare motor drive `xunits 2@ for each bank Bffrom which endless belt driveslfor the spindles y16 'run andextend to transmission/means or twist units 22 mounted at the end standelement -11- for .controlling the operation of the' takeup rollsfljS relation to thel spindles"1.6,'aspreviously mentioned;

Reference `is ,made to copending application Serial No. 274,562, now U1' S; Patent No. 2,689,448,`led 'concurrently :herewith for a further disclosure of thel arrangement andfunction of 'the` n ioto'r 'drive'I units 20; andto copendingl application Serial No. 274,563-, now HU. S. Patent No.l2', 66'7,030, Aalso filed concurrently' herewith for a further detailed disclosure of the twist units 22.*' In addition, reference is also made tocopending application Serial No. 274,536; now U; VS. Patent"No.- 2,658,689, likewise filed concurrently herewith for a descriptionfof la traverse `motion suitable for' association witliavn twist `nit 22 and incorporation in a yarnwindingl machine 'constructed inaccordance with the present invention?" vThe arrangement ofthe frame structure as' described generally `above is further'illustrated in Fig. 2`of lthe drawings in more'or lessskeletonform'with the banks B loi operating elements removed, but with the motorie-'rive -unit'ztlanid twist unit 22 shown in place for eachbank'fB. As shownjrthe motor driveunits 2t) and twist units22'- are secured directly on the end stand elements 10-and 11, respectively, by clamping 'bracket means as-at' 23 and 24 for a fullerdisclosure of which referencel is'again'lmade `to ther above 1 noted copending applicationsfSerial No. 274,562 CU. S."Patent' Noi' 2,689,448), 'and Serial No.

274,563 (U. S. `Patent No. 2,667,030).

The twist unit clamping bracketnmeans 24, as shown in Fig. 2, also' se rve"as anchor'brackets for bracingmea's formed by'crossi'ngftiel rods 25, the bracketfmeafns``24 Abeing suitably 'formed `for this purpose-with tapped recesses adapted' to receive and engage threaded endsl of the tie rods'25. Similar anchorbrackets 26' `arese'cure'd onA the mid Stand V'elementj12 by" assemblyv as withA bolts 27to` spacers 28 and back' bars 29 (compare Fig'. 5)`to 'receiveand engage the otherends of the tie rods 25 which `may be made' hexagonal in cross section for'convenient "manipulation in ttingthem to the anchor brackets r2,4 and 26 orproper tensioning between the stand elements andr 2'.. f" ,f

the

ln this connection it should alsovbe nc` tednthatl 2,6 are all formed` to receive'the anchor brackets '24 and thatl the tie 'rods .25, are secured at their-ends in a-common "plane which mean's Ythat 'the 4tensioned tie'rods 25`-`are necessarily bowed againsteaclrotherin crossing l(cornpare Fig.' 5)' with the result that relation Vibration' of fthe itie'rods'ZS during operation of theuptwister is obviated. Also,v it should be noted ,thatthe crossed tie rods `25-are arranged'betwe'en only'the'end stand element 1-1 andlftlie mid stand element 12 in the embodiment illustrateddn Fig. 2. Where a ylonger framel structureis employed'` that incorporates multiple mid stand elements 121,' as' yis described further below,y it'will usually be ,desirableto re- 3 by the manner in which the banks B of operating elements are secured on the stand elements.

This manner of securing the banks B in place may be described first in relation to Figs. 3 and 4 of the drawings which illustrate in detail the form of the stand elements. As all of the stand elements 10, 11 and 12 are identical, except for side face apertures adapting the end stand elements and 11 for clearance to accommodate operating connections with the motor units and twist units 22 which are incidental insofaras the present disclosure is concerned, it may be assumed that the stand element shown in Figs. 3 and 4 is the mid stand element The characteristic feature of this mid stand element 12, and of the other stand elements 10 and 11, is its formation of channel-shaped halves assembled with the channel anges 31 of these halves 30 extending toward each other, but with flange edges spaced so that shank portions 32 of hanger bolts 33 may be disposed therebetween with the bolt heads 34 received interiorly of the channel halves 30. By employing hanger bolts 33 of the type commonly referred to as loom bolts in which the shank portion 32 adjacent the bolt heads 34 s formed with a fiat-sided or square cross section, as shown, the adjacent edges of the channel flanges 31 can be spaced to retain the hanger bolts 33 against turning so that they can be secured by nuts 35 at their outwardly extending ends at any adjusted position lengthwise of the assembled channel halves 30 forming the stand elements.

The proper spacing of the adjacent fiange edges of the channel halves 30 may be effected in the first instance by means of spacing clips 36 associated with assembly bolts 33 (see Fig. 3), the spacing clips 36 having lips 37 at their side edges, between which the channel halves 30 may be contained, and a central spacing shoulder 38 running parallel to the lips 37, on each side of a square central aperture receiving the fiat-sided shank 32 of assembly bolt 33, for disposition between the adjacent ange edges of the channel halves 30. As the frame structure is erected and the various operating elements of the yarn winding machine are secured in place, these assembly bolts 33 and associated spacing clips 36 may for the most part be removed because the channel halves 30 will then usually be adequately secured in assembled relation otherwise, as will appear from the further description below, although such assembly bolts 33 and spacing clips 36 may be retained, where desired, for strengthening the stand elements of the erected frame structure.

The above noted spacing clips 36 are also employed generally in chine on the stand elements which is done principally by means of hanger rails arranged in'pairs as illustrated at 39 in Figs. 3 and 4, the spacing clips 36 being rotated 90 in this case so that their edge lips 37 lit over and contain the pair of hanger rails 39 While the central shoulf der 38 spaces the rails 39 to receive the hanger bolts 33 at each stand element. The hanger rails 39 selected for illustration in Figs. 3 and 4 are those such as are used in the presently described embodiment of the invention for carrying spindle belt idlers 40, the spaced arrangement of which lengthwise of the yarn winding machine is illustrated schematically in Fig. 5 in relation to the endless belt connection 21 for driving the spindles 16.

Fig. 6 shows the mounting arrangement of the spaced idlers 40 on the hanger rails 39, and in which arrangement spacing clips 36 are again used, but this time at the back of the hanger rails 39 with carrying brackets 41 for the idlers 40 disposed at the front of the hanger rails 39 and secured thereto by attaching bolts 42 reaching from the brackets 41 to the spacing clips 36. By this arrangement, the idlers 40 are disposed for adjustment readily to selected spacings lengthwise of the hanger rails 39, just as the hanger rails 39 are vertically adjustable on the stand elements 10, 11 and 12, and by which the alignment and selected spacing of the idlers 40 is not only greatly facilitated, but which also allows the spacing of the idlers 40 to be changed easily whenever it is desired to change the guage of the machine.

The further arrangement of the operating elements of the machine both within and between the banks B is also shown in Fig. 6, the yarn delivery spindles 16 being shown fitted with yarn carriers or bobbins C such as might be employed to support a yarn package (not shown) for delivery from the spindles 16 during operation of the machine. These spindles 16 are mounted to present whorls securing the operating elements of the Inar 4 43 at the drive belt 21 by hanger brackets 44 of the same type disclosed in U. S. Patent No. 2,573,081, issued October 30, 1951. The hanger brackets 44 are in turn secured on spindle hanger rails 45 by attaching bolts 46 and associated spacing clips 36 in a manner similar to that already described for the idler brackets 41.

The spindle hanger rails 45 may be secured to the end stand elements 10 and 11 by the same hanger bolt arrangement employed for the idler hanger rails 39 as already described above, but at the mid stand element 12 a special support bracket 47 is employed which is adapted for engagement by the hanger bolts at the mid stand element 12 in place of a spacing clip 36. This special support bracket 47 is employed at the mid stand 12, and further support brackets of the same sort are assembled with the spindle hanger rails 45 adjacent the end stands 10 and 11 (compare Fig. 8), for mounting several of the operating elements in each bank B, among which are the separators 17.

The support brackets 47 serve to mount the separators 17 (compare Fig. 7) through common carrying shafts 48 on which groups of individual brackets 49 for each separator 17 are fixed in the required spaced relation for disposition between the spindles 16 when the ends of the carrying shafts 48 are mounted on the support brackets 47. The carrying shafts 48 are hexagonal in cross section and are mounted on the support brackets 47 for rotation in circular fiange portions 50 formed on a radius corresponding to the radius across points of the shafts 48 and defining more than half a circle, but opening upwardly into a flanged channel portion 51 having a width corresponding to the width across fiats of the hexagonal shafts 48, so that upon turning the shafts 48 to align their fiat width with the channel portions 51 they may be raised in relation to the support brackets 47.

Normally, the separators 17 are maintained by gravity at a disposition between the spindles 16, an abutment portion 52 being provided on the individual separator brackets 49 to rest against the spindle rails 45, as shown, and thereby position the separators 17 in operating relation to the spindles 16. The manner in which the shafts 4S are carried for rotation on the support brackets 47, however, renders the separators 17 swingable from between the spindles 16 for cleaning, and latch means is provided for maintaining the separators 17 at a swung out position (as indicated by broken lines at 17') when desired.

This latching means comprises latch fingers 53 xed on the hexagonal carrying shafts 48 and related latching brackets 54 fixed on the spindle hanger rails 45 and formed with latching notches 55 for engaging the extending ends of the latch fingers 53 at the swung out position of the separators 17. Engagement of the latch fingers 53 in these notches 55 is permitted by the upwardly opening flanged channel portions 51 on the support brackets 47 which allow the separator carrying shafts 48 to rise therein just before the latch fingers 53 reach the notches 55 so that a slight amount of play for the shafts 48 in the flanged channels 51 provides adequate freedom for the shafts 48 to rise and fall as necessary to engage and release the latch fingers 53 at the notches 55.

The support brackets 47 also carry further hanger rails 56 on which suitable centering eyes 57 may be mounted above the spindles 16 for obtaining and controlling the ballooning effect of yarn delivered from the spindles 16. In addition, the support brackets 47 serve as supports as indicated at 58 for traverse bars 59 carrying yarn guides (not shown) to direct the rewinding traverse as disclosed more fully in the above noted copending application Serial No. 274,536 (U. S. Patent No. 2,658,689).

Above the support brackets 47, bearing hangers 60 are bolted directly as at 61 to the mid stand element 12, and in like manner to the end stands 10 and 11, to carry a mounting shaft 62 for the take-up rolls 18 through which rewinding of the twisted yarn on yarn receiving members (indicated by broken lines in empty position at M and full position at M in Fig. 6) is actuated as described in the above noted copending application Serial No. 274,536 (U. S. Patent No. 2,658,689). The take-up roll shafts 62 are suitably fitted with conventional bearing sleeves 63 to ride the hangers 60 while remaining easily removable.

Finally, further hanger rails 64 are secured as at 65 on the stand elements 10, 11 and 12 to carry the finger brackets 19 which provide vertical guideways 66 for supporting and guiding the yarn receiving members M iii peripheral driving `contact with the take-up rolls 18, the broken line position of the yarn receiving members at M indicating the relative disposition with respect to the take-up rolls 18 when empty, and the position at M' indicating the vertical displacement provided for by the linger bracket guideways 66 as the yarn is rewound to lill the yarn receiving members.

At the lower ends of the stand elements 10, 11 and 12, the base members 13 which support the stand elements laterally are shown in Fig. 6 as comprising a pair of base arms 67 extending in opposite directions at the foot of the stand elements and secured thereto by attaching bolts 68 received between the channel halves 30 in the manner previously described. The base arms 67 are also each formed with assembly flanges 69 disposed to one side at their inner ends to extend across and beyond the stand elements at each side for bolting as at 70 to each other.

The leveling feet 14 which are associated with the base members 13 at their extending ends are accommodated for vertical adjustment in downwardly opening yoke portions 71 formed in the base arms 67 and having leveling screws 72 extending vertically therein from the top of the arms 67 to bear on the leveling feet 14 for ad justment thereof, the arms 67 being further tted with holding bolts 73 disposed to extend through elongated 'slots 74 in the leveling feet 14 to secure them in place at a leveled disposition. Also, the arms 67 are formed at their extending ends with a lipped recess 75 for supporting the previously mentioned guard rail 15, set screws (not shown) or like means being provided in the top wall of the recesses '75 to engage and secure the guard rail 15 in place to encircle the `machine `so as to provide a continuous abutment beyond the normal horizontal projection of `any of the operating elements carried by the frame structure, and auxiliary support feet 76 being provided for the guard rail 15 at the ends of the machine.

The great flexibility afforded by the frame structure of the present invention and the manner in which the uptwister operating elements are arranged thereon makes it possible to employ the same basic arrangement in an uptwister 'extended to any practical length desired, as is illustrated diagrammatically in Fig. 8 in which a suitable lengthwise layout is indicated for a machine constructed on a frame structure incorporating tive intermediate stand elements 12. This layout in Fig. S also gives a good indication of the way in which the various hanger rails serve to tie the stand elements together as well vas providing the means for carrying the operating elements.

ln this connection it should be noted that breaks in the hanger rails 39, 45 and 64 are indicated as occurring in alignment with the intermediate stand elements 12 so that butt joints can be braced at these points by the previously described spacing clips. lt... should also be noted that the component lengths of the hanger rails are arranged t0 extend so that only one of the bar members forming each pair of hanger rails breaks at any one intermediate stand element 12 so as to maintain the rigidity of the frame structure at these points. In addition, it may be pointed out that component lengths of the take-up roll shaft 62 are purposely made to extend in staggered relation to the stand elements because Athe bearing sleeves 63 needed to be spaced on the shaft 162 at `these points for disposition on the bearing hangers 60, the component shaft lengths being joined elsewhere as convenient between the `spaced take-up rolls 18 by conventional shaft couplings as indicated at 77.

The present invention has been described in detail a'bove for purposes of illustration only and is not intended to be limited by this disclosure or otherwise except as dened in the appended claims.

We claim:

l. In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality of vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements formed of channel-shaped halves assembled with the channel flanges of said halves extending toward each other but having the adjacent flange edges spaced whereby the head and adjacent shank portions of hanger bolts for said banks of spindles and yarn receiving mem- 6 bers may b'e received and retained against turning by said stand elements while remaining vertically adjustable thereon.

2. In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality of vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements, and horizontally disposed hanger rails for said spindles and for said yarn receiving members in each of said banks, said stand elements being formed of channel shaped halves assembled with the channel flanges of said halves extending toward each other but having the adjacent flange edges thereof spaced whereby the head and adjacent shank portions of hanger bolts may be received and retained against turning by said stand elements while remaining vertically adjustable for securing said hanger rails thereon at the vertical spacings desired within and between said banks of spindles and yarn receiving members.

3. In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality or vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements formed of channel-shaped halves assembled with the channel anges of said halves extending toward each other but having the adjacent ange edges spaced, hanger rails for said spindles and for said yarn receiving members in each of said banks, and hanger bolts securing said hanger rails horizontally in vertically spaced relation on said stand elements, said hanger bolts having the heads thereof received interiorly of the halves forming said stand elements and having adjacent flat-sided shank portions extending outwardlly between the spaced ilange edges of said halves and retained thereby against turning.

In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality of vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements, hanger rails for said spindles and for said yarn receiving members, and hanger bolts for securing said hanger rails on said stand elements, said stand elements being formed of channel-shaped halves assembled with the channel flanges of said halves extending toward each other but having the adjacent flange edges thereof spaced, the extent of said hanger rails corresponding to the ag gregate horizontal spacing of said stand elements, and said hanger bolts having the heads thereof received interiorly of the halves forming said stand elements and having adjacent ilat-sided shank portions extending outwardly between the spaced flange edges of said halves land retained thereby against turning while remaining vertically adjustable on said stand elements for securing said hanger rails horizontally thereon at the vertical spacings desired within and between said banks of spindles and yarn receiving members.

5. A frame structure for a yarn winding machine as dened in claim 4 and further characterized in that said hanger rails each comprise a pair of bar members secured in spaced relation on said stand elements by said hanger bolts and thereby disposed for receiving attaching bolts to support said spindles and yarn receiving members at selected spacings lengthwise of said hanger rails.

6. A frame structure for `a yarn winding machine as ldelined .in claim 4 :and further characterized in that said hanger rails each comprise a pair of bar members secured in spaced relation on said stand elements by said hanger bolts, each bar member of said pair being formed compositely lengthwise of said machine by lengths extending alternately so that a component length of only one bar member of said pair terminates at any one stand element intermediate the ends of said machine.

7. A frame structure for a yarn winding machine as defined in claim 4 and further characterized in that bracing means is extended between at least two adjacent stand elements but less than all of said stand elements.

8. A frame structure for a yarn winding machine as defined in claim 7 and further characterized in that said bracing means comprises at least one pair of tie rods secured to extend diagonally between said adjacent stand elements in crossing relation, said tie rods being secured to said stand elements in a common plane whereby they are bowed in crossing and thereby tensioned against each other so that relative vibration is avoided during operation of said yarn winding machine.

9. A yarn winding machine for imparting tw1st to yarn by rewinding the same from rotating spindles to yarn receiving members, said machine comprising a plurahty of horizontally spaced vertical stand elements formed of channel-shaped halves assembled with the channel flanges thereof extending toward each other but having the adjacent ange edges spaced, lateral base members on each of said stand elements, hanger bolts having the heads thereof received interiorly of the halves forming said stand elements and having adjacent at-sided shank portions extending outwardly between the spaced ange edges of said halves and retained thereby against turning while remaining vertically adjustable on said stand elements, banks of rotatable spindles and yarn receiving members and related operating elements, supporting means for the elements of said banks secured on said stand elements by said hanger bolts, said supporting means including hanger rails extending horizontally between said stand elements, drive means for said rotatable spindles carried by one end stand element of said plurality, transmission means for controlling the operation of said yarn receiving members carried by the other end stand of said plurality, and a driving connection for said spindles running from said drive means and extending to said transmission means.

10. A yarn winding machine as defined in claim 9 and further characterized in that said lateral base members are tted at their extending ends with adjustable leveling feet and with means for engaging and supporting a guard rail encircling said machine to present a continuous abutment beyond the horizontal projection of any of the operating elements of said machine carried by said stand elements.

1l. In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality of vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements,

hanger rails for supporting said spindles and yarn receiving members, hanger bolts assembled with said stand elements for securing said hanger rails horizontally thereon, separators adapted for disposition between said spindles, bracket means assembled with said spindle hanger rails for mounting said separators swingably between said f spindles, said separators being formed with an abutment portion disposed for normally resting against said spindle hanger rails and thereby positioning said separatorsv in operating relation between said spindles, and said separators being fitted with a latch nger, and latching bracket means carried on said spindle hanger rails for engaging said separator latch fingers when said separators are swung from between said spindles for cleaning.

12. In a yarn winding machine, the structure defined in claim l1 and further characterized in that said separators are arranged in groups with the separators forming each group fixed on common carrying shafts, and said bracket means for mounting said separators comprises support brackets assembled with said spindle hanger rail at spaced intervals lengthwise thereof and formed for receiving and supporting the ends of said carrying shafts for rotation while allowing said sheafts to rise with respect thereto for engagement and release of said latch lingers by said latching bracket means.

13. In a yarn winding machine, the structure defined in claim 11 and further characterized in that said bracket means for mountlng said separators comprises support brackets engaged by said hanger bolts at the stand elements intermediate the ends of said machine for securing said hanger rails thereon, and further support brackets assembled with said hanger rails adjacent the stand elements at each end of the machine; and in that said separators are fixed in groups on common carrying shafts extending between said support brackets, said support brackets being formed for receiving and supporting the ends of said carrying shafts for rotation while allowing said shafts to rise with respect thereto for engagement and release of said latch fingers by said latching bracket means.

14. In a yarn winding machine for imparting twist to yarn by rewinding the same from rotating spindles to yarn receiving members and in which a plurality of vertically spaced banks of said rotating spindles and yarn receiving members are arranged, a frame structure comprising a plurality of horizontally spaced vertical stand elements, supporting means for the elements of said banks including hanger rails for said spindles, hanger bolts assembled with said stand elements for securing said supporting means thereon, support brackets assembled with said hanger rails at spaced intervals lengthwise thereof, hexagonal shafts extending between said brackets, said support brackets being formed with circular flanges having a radius corresponding to the radius across points of said shafts and defining more than half a circle for rotatably supporting said shafts, and said circular flanges opening into an upwardly anged channel on said brackets having a width corresponding to the width across ats of said shafts for allowing said shafts when turned accordingly and lifted to be raised in said channels, a plurality of separators fixed on said shafts for disposition between said spindles, said separators being formed with an abutment portion disposed for normally resting against said spindle hanger rails and thereby positioning said separators in operating relation between said spindles, latch fingers tted on said carrying shafts, and latching bracket means carried on said spindle hanger rails for engaging said latch fingers when said separators are swung on said shafts from between said spindles for cleaning.

15. A frame structure for machines in which a plurality of yarn ends are wound simultaneously, said frame structure comprising at least two horizontally spaced vertical stand elements formed of channel-shaped halves assembled with the channel flanges of said halves extending toward each other but having the adjacent flange edges spaced whereby the head and adjacent shank portions of hanger bolts for yarn handling means may be received and retained against turning by said stand elements while remaining vertically adjustable thereon, and at least one pair of tie rods secured to extend diagonally between adjacent stand elements in crossing relation, said tie rods being secured to said stand elements in a common plane whereby they are bowed in crossing and thereby tens1oned against each other so that relative vibration thereof is avoided.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 498,264 Hildreth May 30, 1893 992,877 Kahn May 23, 1911 2,021,401 Bochmann NOV. 19, 1935 2,295,935 Cotchett Sept. l5, 1942 2,615,297 Haythornthwaite Oct. 28, 1952 FOREIGN PATENTS Number Country Date 27,214 Great Britain of 1905 

